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Old 01-23-2020, 03:29 AM   #1
Scooby Newbie
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
2013 Impreza WRX STi

Default Antikythera Motorsports 2013 WRX STi Sedan Build Thread
New thread to track this build.
This is my current track car.
The car came to me with an invidia N1 titanium tip exhaust.
I upgraded the shifter bushings (front + rear) with stiffer kartboy bushings, stainless steel brake lines, and motul DOT 5.1.
I blew the stock motor, ~65psi on #4 and #3.
No metal shards in oil pan, cooler, or chips in stock turbine.
After tearing this thing apart, I figured I'd build it out to much higher capability.
I'm hoping this build will get me to ~450-500whp with a considerable amount of headroom for higher power levels after I pick up a short block that will take the beating.
Between the E85, fat turbo, and S3 cams, I'm hoping to make full boost by around 4krpms.
Once I get bored of this new setup, I'll have an old block sent to IAG for stage 4 mods and pick up a few more go fast goodies to really make this bird sing.
I'm not planning on completing the mods under the "future" section for some time.

So far:

Boxer Motorsports Stage 1 Short Block
* Manley Performance Platinum Series pistons (100mm 8.5:1 CR)
* OEM rods
* OEM crank
* King Racing bearings
* 11mm Oil Pump
* Blue Printed
* ARP2000 head studs
* Moroso oil pickup
* Moroso deep sump aluminum oil pan

Comp Clutch Twin Disk Ceramic Kit (MCS + Flywheel)
Gates Racing Timing Belt Kit w/ water pump
Subaru OEM Thermostat
Subaru OEM Thermostat Gasket
OEM Full Gasket and seal kit

GSC Stage 3 Billet Cams
Subaru OEM Cam Seal x4
Manley Performance Pro Series Valve Spring And Retainers

Borg Warner 83/74 turbo .83 a/r T3
Full Race Rotated DP
Full Race Turbo hardware kit
Full Race Rotated UP
UP inconel hardware kit

ETS Rotated Wrinkle Blk FMIC pipe kit
TiAL Q Blow Off Valve Block Off Plate

Cobb Fuel Pressure Sensor Kit
Cobb Ethanol Sensor Kit
FIC 2150cc top feed injectors
IAG TGV Delete Housings
Cobb AccessPort


TiAL Q Blow Off Valve O-Ring
TiAL Q Blow Off Valve Clamp Assembly

Cobb AP Defroster Vent Mount
JCS Triple A-Pillar Pod (3x60mm)
DEFI Oil Temp Gauge (60mm)
DEFI EGT Gauge (60mm)
DEFI Oil Pressure Gauge (60mm)
SMY Cluster Dual Gauge pod (2x52mm)
AEM X-Series Boost Gauge (52mm)
AEM UEGO (52mm)
IAG IAT Speed Density Kit
Cobb 4BAR MAP Sensor

Subaru Genuine OEM Oil Filter (x6)
IAG V2 Timing Belt Guide
IAG Street Series AOS
GetaDomTune Cylinder 4 Chamber Cooling System

Dual solid-state fuel pump relay + wiring

Manley Performance Race Master Stainless Steel Exhaust Valves
Manley Performance Race Flo Stainless Steel Intake Valves

IAG V3 Top Feed Fuel Rails Black
Aeromotive A1000 FPR
Fuel Line Fittings
PTFE braided stainless fuel lines, -10AN

IAG Race Series Solid Engine Mounts
Torque Solution Solid Transmission Mount
Torque Solution solid pitch stop mount


Killer B Motorsport Holy Header
JE Pro Seal Gaskets SB1003-039
IAG Stage 4 Short Block
Manley I-beam rods
JE FSR with upgraded wrist pins or Cosworth pistons with Cosworth pins
Dry sump (undecided on package)
IAG 14mm ARP Head Stud Set
Fluidampr Crank Pulley

What am I missing?
Should I go with the BC EJ20/EJ25 valve keepers with the Manley valves/springs/retainers I'm planning on using?
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Last edited by a0d; 05-19-2020 at 10:01 PM.
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